271 results found displaying 73-75
    
hbbatista
 Brazil
Turbocharged alternator Printer Friendly Version
Since a high performance turbocharger reduces engine lifetime, I had this idea.
The turbocharger turbine would be connected to a reductor instead of an air pump and then it would push an alternator. So, all parts that are normally connected directly to the engine, like oil pump, water pump, air conditioner compressor, power steering pump, would be pushed by electrical motors. The engine would get free from all that stuff without being damaged, and all the energy wasted in exhaust flow would be recycled by the turbo. Even the waste gate would not be necessary.
Reward: I would like to know that it works. 

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vinupattar
 India
Variable Car Window Transparency Printer Friendly Version
Many times while driving in the sun, I wish if there was a knob in the car's dashboard, using which i could turn the windows opaque to a certain extent. Some times at night, with the tinted glasses, I wish I could turn them completely transparent.
I dunno if such a device exists, but the laevo & dextro rotatory properties of light when passing through different mediums may be used. Another idea would be to use a chemical sandwiched between layers that could be triggered by electrical impulses.
Reward: Could someone fit such a device to my car? 

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ArdeoCaldidus
 USA
Vaccum Transport Printer Friendly Version
My idea would be to create underground or over ground tubes that would be used as a transport. The idea would be to take individual capsules, where the occupant lies down. Then place them into the vaccum tube and shoot them to their destination.
Since only having one person per tube is uneconomical (it would take a large amount of energy to vaccum out a tube for one person) I would say that the tube would have intervals for travel, about every 10 minutes or so. The people who pay the fee get placed in a capsule, put into the tube, then another person is placed into a capsule, etc. etc. for about 10 max capsules per tube. The end of the tube is shut, and vaccumed out, sucking the occupants to their destination rather quickly.
This would be useful for mining openerations, undersea labs and living, quick travel (with miles of tube, or maybe cross city to cross states tubes) and other things. Or, for quick underground travel, which is economical, take massive tubes, then take a huge capsule, which is like a monorail or subway train (where occupants can stand or sit) which seats about 20-70 or more, then vaccum it out. This idea wold also stop pollution. Just think of all the regular commuters who cold use this instead of dirty cars.
Reward: Credit for the idea; A full working system for my home and anyplace i would ike to set up a return (like a workplace or school) 

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